1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2/*
3 * The contents of this file are subject to the Mozilla Public
4 * License Version 1.1 (the "License"); you may not use this file
5 * except in compliance with the License. You may obtain a copy of
6 * the License at http://www.mozilla.org/MPL/
7 *
8 * Software distributed under the License is distributed on an "AS
9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
10 * implied. See the License for the specific language governing
11 * rights and limitations under the License.
12 *
13 * The Original Code is the Netscape Portable Runtime (NSPR).
14 *
15 * The Initial Developer of the Original Code is Netscape
16 * Communications Corporation.  Portions created by Netscape are
17 * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
18 * Rights Reserved.
19 *
20 * Contributor(s):
21 *
22 * Alternatively, the contents of this file may be used under the
23 * terms of the GNU General Public License Version 2 or later (the
24 * "GPL"), in which case the provisions of the GPL are applicable
25 * instead of those above.  If you wish to allow use of your
26 * version of this file only under the terms of the GPL and not to
27 * allow others to use your version of this file under the MPL,
28 * indicate your decision by deleting the provisions above and
29 * replace them with the notice and other provisions required by
30 * the GPL.  If you do not delete the provisions above, a recipient
31 * may use your version of this file under either the MPL or the
32 * GPL.
33 */
34
35#ifndef nspr_scoos5_defs_h___
36#define nspr_scoos5_defs_h___
37
38/*
39 * Internal configuration macros
40 */
41
42#define PR_LINKER_ARCH	"scoos5"
43#define PR_DLL_SUFFIX		".so"
44
45#define _PR_SI_SYSNAME      "SCO"
46#define _PR_SI_ARCHITECTURE "x86"
47#define _PR_STACK_VMBASE    0x50000000
48
49#define _MD_DEFAULT_STACK_SIZE	65536L
50#define _MD_MMAP_FLAGS          MAP_PRIVATE
51
52#undef  HAVE_STACK_GROWING_UP
53#define	HAVE_DLL
54#define	USE_DLFCN
55
56#if !defined (HAVE_STRERROR)
57#define HAVE_STRERROR
58#endif
59
60#ifndef	HAVE_WEAK_IO_SYMBOLS
61#define	HAVE_WEAK_IO_SYMBOLS
62#endif
63
64#define _PR_POLL_AVAILABLE
65#define _PR_USE_POLL
66#define _PR_NO_LARGE_FILES
67#define _PR_STAT_HAS_ONLY_ST_ATIME
68
69#define NEED_STRFTIME_LOCK
70#define NEED_TIME_R
71#define _PR_RECV_BROKEN /* recv doesn't work on Unix Domain Sockets */
72
73#define USE_SETJMP
74
75#ifdef _PR_LOCAL_THREADS_ONLY
76#include <setjmp.h>
77
78#define _MD_GET_SP(_t)  (_t)->md.jb[4]
79#define PR_NUM_GCREGS	_SIGJBLEN
80#define PR_CONTEXT_TYPE	sigjmp_buf
81
82#define CONTEXT(_th) ((_th)->md.jb)
83
84#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)				\
85{								  									\
86	*status = PR_TRUE;												\
87    if (sigsetjmp(CONTEXT(_thread),1)) {				  			\
88		(*_main)(); 												\
89    }								  								\
90    _MD_GET_SP(_thread) = (int) ((_sp) - 64);	\
91}
92
93#define _MD_SWITCH_CONTEXT(_thread)  								\
94    if (!sigsetjmp(CONTEXT(_thread), 1)) { 							\
95		(_thread)->md.errcode = errno;  							\
96		_PR_Schedule();		     									\
97    }
98
99/*
100** Restore a thread context, saved by _MD_SWITCH_CONTEXT
101*/
102#define _MD_RESTORE_CONTEXT(_thread)								\
103{				     												\
104    errno = (_thread)->osErrorCode;	     							\
105	_MD_SET_CURRENT_THREAD(_thread);								\
106    siglongjmp(CONTEXT(_thread), 1);    							\
107}
108
109#endif /* _PR_LOCAL_THREADS_ONLY */
110
111struct _MDThread {
112    jmp_buf jb;
113    int id;
114    int errcode;
115};
116
117struct _MDThreadStack {
118    PRInt8 notused;
119};
120
121struct _MDLock {
122    PRInt8 notused;
123};
124
125struct _MDSemaphore {
126    PRInt8 notused;
127};
128
129struct _MDCVar {
130    PRInt8 notused;
131};
132
133struct _MDSegment {
134    PRInt8 notused;
135};
136
137/*
138 * md-specific cpu structure field
139 */
140#define _PR_MD_MAX_OSFD FD_SETSIZE
141
142struct _MDCPU_Unix {
143    PRCList ioQ;
144    PRUint32 ioq_timeout;
145    PRInt32 ioq_max_osfd;
146    PRInt32 ioq_osfd_cnt;
147#ifndef _PR_USE_POLL
148    fd_set fd_read_set, fd_write_set, fd_exception_set;
149    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
150				fd_exception_cnt[_PR_MD_MAX_OSFD];
151#else
152	struct pollfd *ioq_pollfds;
153	int ioq_pollfds_size;
154#endif	/* _PR_USE_POLL */
155};
156
157#define _PR_IOQ(_cpu)			((_cpu)->md.md_unix.ioQ)
158#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
159#define _PR_FD_READ_SET(_cpu)		((_cpu)->md.md_unix.fd_read_set)
160#define _PR_FD_READ_CNT(_cpu)		((_cpu)->md.md_unix.fd_read_cnt)
161#define _PR_FD_WRITE_SET(_cpu)		((_cpu)->md.md_unix.fd_write_set)
162#define _PR_FD_WRITE_CNT(_cpu)		((_cpu)->md.md_unix.fd_write_cnt)
163#define _PR_FD_EXCEPTION_SET(_cpu)	((_cpu)->md.md_unix.fd_exception_set)
164#define _PR_FD_EXCEPTION_CNT(_cpu)	((_cpu)->md.md_unix.fd_exception_cnt)
165#define _PR_IOQ_TIMEOUT(_cpu)		((_cpu)->md.md_unix.ioq_timeout)
166#define _PR_IOQ_MAX_OSFD(_cpu)		((_cpu)->md.md_unix.ioq_max_osfd)
167#define _PR_IOQ_OSFD_CNT(_cpu)		((_cpu)->md.md_unix.ioq_osfd_cnt)
168#define _PR_IOQ_POLLFDS(_cpu)		((_cpu)->md.md_unix.ioq_pollfds)
169#define _PR_IOQ_POLLFDS_SIZE(_cpu)	((_cpu)->md.md_unix.ioq_pollfds_size)
170
171#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)	32
172
173struct _MDCPU {
174    struct _MDCPU_Unix md_unix;
175};
176
177#define _MD_INIT_LOCKS()
178#define _MD_NEW_LOCK(lock) PR_SUCCESS
179#define _MD_FREE_LOCK(lock)
180#define _MD_LOCK(lock)
181#define _MD_UNLOCK(lock)
182#define _MD_INIT_IO()
183#define _MD_IOQ_LOCK()
184#define _MD_IOQ_UNLOCK()
185
186#define _MD_EARLY_INIT          	_MD_EarlyInit
187#define _MD_FINAL_INIT				_PR_UnixInit
188#define _MD_INIT_RUNNING_CPU(cpu) 	_MD_unix_init_running_cpu(cpu)
189#define _MD_INIT_THREAD         	_MD_InitializeThread
190#define _MD_EXIT_THREAD(thread)
191#define	_MD_SUSPEND_THREAD(thread)
192#define	_MD_RESUME_THREAD(thread)
193#define _MD_CLEAN_THREAD(_thread)
194
195#define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
196#define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
197
198#define _MD_SELECT		_select
199#define _MD_POLL		_poll
200
201#endif /* nspr_scoos5_defs_h___ */
202